Survival in the Core: I'm writing a guide for the entire server.

The moment Lin You jumped off the mine cart, the bronze sword was already unsheathed.

Flame Spirit was even faster than him, her fiery red figure darting out like an arrow released from a bow.

"Meow!"

Flaming tail sweep!

The burning tail lashed out at the nearest skeleton soldier, sending bone fragments flying.

-52!

A huge damage number popped up, and the skeleton soldier was instantly defeated.

But what made Lin You frown deeply was—

His bronze sword struck the shoulder blade of another skeleton soldier.

It only caused a mere 5 points of damage.

"The attack effectiveness is that much worse?"

Lin You drew his sword and retreated, summoning five kobold miners from the Magic Card Encyclopedia.

"Stop them!"

Five summoned creatures swarmed forward, blocking the several skeleton soldiers who were trying to give chase.

The skeleton soldiers' counterattack was also exceptionally fierce.

The rusty iron sword struck the kobold, leaving a deep wound that splattered blood everywhere.

Taking the opportunity, Lin You retreated a few steps, activated his intermediate-level Insightful Eye, and carefully observed the enemy in front of him.

……

Skeleton Soldiers

[Level: 1]

【Life: 45/45】

[Skill: Return to Death]

[Return to Life: There is a 50% chance to revive with full health when killed. This effect can only be triggered once.]

[Weaknesses: Vulnerable to fire, holy, and blunt weapon attacks; slashing damage is halved]

……

"I see... The slashing damage is halved, no wonder I couldn't damage it."

Lin You suddenly realized.

Fortunately, he didn't fight recklessly, otherwise he might have suffered a great loss.

"Flame Spirit, use fire against them!"

"Meow!"

Upon hearing Lin You's command, Yan Ling stopped playing around and each attack was accompanied by blazing flames.

This attack method consumes a significant amount of its magic power, but its effect is remarkable.

Your pet "Flame Spirit" has killed 1 "Skeleton Soldiers"!

[Experience points +20! Current stats: 290/500]

"Okay! Continue!"

Lin You's spirits lifted, and he commanded the kobold summons to entangle the remaining skeleton soldiers, cooperating with the Flame Spirit to defeat them one by one.

Flame Spirit's fire damage is extremely effective against skeletons.

Each claw strike or tail whip can deal more than 50 points of damage.

In less than two minutes, the remaining three skeleton soldiers all fell down.

One of them triggered "Return to Death," and the scattered bones were pieced back together.

But before it could attack, it was lashed out again by the Flame Spirit's tail.

Your pet "Flame Spirit" has killed 3 "Skeleton Soldiers"!

[Experience points +60! Current stats: 350/500]

[Battle over! You have repelled the invasion of the "Undead Scourge"!]

Lin You breathed a sigh of relief and put away the bronze sword.

The minecart's durability dropped by less than 10 points, so it's not a big problem.

He crouched down and first turned the dead skeleton soldiers into magic cards.

[Card crafting successful! You have obtained "Magic Card: Skeleton Soldier" x4]

……

【Magic Card: Skeleton Soldier】

[Level: 2 (White)]

[Note: You can obtain the following effects by using "Card Control Technique"]

【Effect ① - Summon: Consume this Spell Card to summon a skeleton soldier to fight for you until the summoned creature dies or is manually recalled】

【Effect ② - Absorption: Consume this magic card to increase your Willpower attribute by 1, up to a maximum of 30 points at Rank E】

……

"The skeleton soldiers' attribute boost is Willpower, which is good and doesn't conflict with other magic cards."

Seeing the absorption effect of the magic card, Lin You was overjoyed.

Among his attributes, only Luck and Willpower are at their original values ​​and have not been improved.

Now we can make up for our shortcomings.

However, the invasion of the undead is random.

I wonder when we'll meet again.

He then examined the loot dropped by the skeleton soldiers.

Several ribs, shrouded in a ghostly green aura, lay scattered on the ground.

You have obtained 4 "Undead Bones"!

……

[Bone of the Dead]

Grade: 2 (White)

[Note: Bones containing traces of necromantic energy can be used to craft certain special items]

[Additional Information: You have unlocked the recipe for "Summoning Lantern"]

……

Lin You held the bones in her hands, her eyes slightly burning.

The Intermediate Eye of Insight activates automatically, and new information appears before your eyes.

……

【Recipe: Summoning Lantern】

Grade: Level 3 (Green)

[Requirements: 5 Copper Ingots, 5 Undead Bones, 1 Corpse Oil, Basic Workbench]

[Effect: The Summoning Lantern provides 75% light intensity, but while held, it increases the probability and intensity of encounters with undead invasions.]

[Additional Information: If you break the Summoning Lantern directly, you will immediately trigger an undead invasion. This can only be done 10 times per day.]

……

"Hmm...not bad."

Lin You finished reading the formula information and seemed to be deep in thought.

The light intensity is 75%, which is significantly higher than the 50% of mine cart lanterns and ordinary torches.

But this is not the point.

The key point is... breaking the lantern will immediately trigger an undead invasion!

What does this mean?

This means he can actively farm monsters!

There's no need to try your luck in the vast earth, no need to waste fuel digging everywhere.

Once you make a spirit-summoning lantern and break it, the spirits of the dead will come to you on their own!

"Experience points, magic cards, dropped materials... you can get them all reliably!"

Lin You took a deep breath, forcibly suppressing her excitement.

He glanced at the formula requirements.

He has 5 copper ingots.

Undead Bone x4, one more needed.

Corpse oil x1... He'd never seen this stuff before.

"What is corpse oil?"

Lin You opened the trading market and entered "corpse oil" in the search bar.

There weren't many search results, but they did exist.

……

【corpse oil】

Grade: 2 (White)

[Note: The grease dripping from the zombie's body emits a nauseating stench and can be used to craft certain special items.]

Price: 30 copper coins/serving

[Seller: Anonymous]

……

"30 copper coins a piece, not expensive."

Lin You didn't hesitate and placed the order directly.

[Transaction successful! You have obtained "Corpse Oil" x1!]

[30 copper coins consumed, remaining funds: 4 silver coins, 75 copper coins]

As for the missing piece of undead bone, it is available on the market and is not expensive.

Lin You casually bought one.

[Transaction successful! You have obtained "Undead Bone" x1!]

[20 copper coins consumed, remaining funds: 4 silver coins, 55 copper coins]

"I have all the materials. I'll start making it when I get back."

Lin You nodded in satisfaction and was about to return to the minecart when he suddenly heard Yan Ling let out a soft cry.

"Meow……"

He looked down and saw that Yanling was lying on the ground, the flames on its tail much dimmer than before.

The little guy's eyes were half-open and half-closed, and he looked a little tired.

"Did you use too much magic?"

Lin You squatted down and gently stroked Yan Ling's head.

In the battle just now, Flame Spirit was the main force, continuously using Claw Strike and Flame Tail Whip, which must have consumed a lot of magic power.

He opened the Flame Spirit's attribute panel and took a look.

【Flame Spirit (Flame-tailed Spirit Cat)】

[Level: 2]

[Magic Power: 45/220]

Sure enough, less than a quarter of the magic power remained.

"You've worked hard, little one."

Lin You took out the earthworm meat he had bought earlier from his backpack and placed it in front of Yan Ling.

"Come on, have something to eat to replenish your energy."

Smelling the aroma of meat, Yanling mustered her strength and took a bite of the earthworm meat.

After chewing a few times, its spirits improved significantly, and it began to tear at the food in large bites.

The portion of earthworm meat was quickly devoured.

Flame Spirit licked its paws, yawned, and then jumped into Lin You's arms, curling up into a ball.

Meow~

It let out a satisfied whimper, closed its eyes, and quickly drifted off to sleep.

Lin You carried Yan Ling back to the mine cart.

He first put the collected undead bones and corpse oil into the treasure chest, and then sat back down at the control panel.

"Keep digging."

The excavation did not take long; about two minutes later, the mine cart drove out of the narrow passage.

Suddenly, everything became clear.

A spacious underground space appeared before Lin You.

This space was larger than any he had ever been to before.

Wherever the light from the mine cart lanterns reached, large areas of dark red iron ore veins were exposed on the ground.

"That's right, there are at least five mining sites."

Lin You jumped off the minecart, activated his intermediate-level Eye of Insight, and carefully observed the space.

No mushroom monsters, no slimes, and no kobolds were found.

It looks very calm.

"Good luck."

Lin You breathed a sigh of relief, took out a copper pickaxe from his backpack, and prepared to dig.

However, the moment he took his first step—

The Intermediate Eye of Insight suddenly issued a strong warning.

A blurry red outline appeared below the ground in the field of vision.

Its outline was long and winding, slowly wriggling in the soil.

[Additional Information: Several "Earth Worms" lurk beneath this subterranean space, hunting prey by transmitting vibrations into the earth.]

Lin You suddenly stopped walking.